Stethoscope diaphragm



FIG. 1 is a perspective view of a stethoscope diaphragm showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the stethoscope diaphragm are for portions that forms no part of the claimed design. 

CLAIM The ornamental design for a stethoscope diaphragm, as shown and described. 